- #3d earthquake simulator upgrade
- #3d earthquake simulator code
- #3d earthquake simulator series
- #3d earthquake simulator simulator
Complex earthquake event patterns are identified and the earthquake sequence presents two phases.
#3d earthquake simulator simulator
The simulator is used to model multicycle dynamics of a 3D strike-slip fault with a bend. The simulator can handle time steps ranging from hundredths of a second to a fraction of a year based on a variable time stepping scheme, and can resolve the cohesive zone at rupture fronts of dynamic ruptures. EQdyna and EQquasi are coupled through on-fault physical quantities of shear and normal stresses, slip-rates and state variables in the RSF. Both finite element codes are parallelized through MPI to improve computational efficiency and capability.
#3d earthquake simulator code
The simulator integrates an existing finite element code EQdyna for the co-seismic dynamic rupture phase and a newly developed finite element code EQquasi for the quasi-static phases of earthquake nucleation, post-seismic and inter-seismic deformation of an earthquake cycle. The fault is governed by the rate- and state-dependent friction (RSF).
![3d earthquake simulator 3d earthquake simulator](https://www.openscied.org/wp-content/uploads/2019/07/AUZh8lSCQcWEgV9TR1rSPw_thumb_9b.jpg)
We develop a finite element dynamic earthquake simulator to model multicycle dynamics of three-dimensional geometrically complex faults. In Preparation May 4, 2019, SCEC Contribution #9070 The movements follow precise earthquake records that researchers have gathered from around the world.A 3D Finite Element Dynamic Earthquake Simulator for Multicycle Dynamics of Geometrically Complex Faults Governed by Rate- and State-Dependent Friction Dunyu Liu, & Benchun Duan
#3d earthquake simulator series
The principle behind the table is relatively simple: various structures are built on top of the facility's floor, or platen, which is connected to a series of horizontal and vertical actuators, or pistons, that move back and forth, simulating earthquake motions. The findings led to new, better guidelines for the way these components should be connected to buildings' structural frames so they don't detach during a quake. In 20, during a series of landmark tests, a team tested elevators and stairs inside a full-size, six-story building. In 2008, a test led by Professors Robert Fleischman of the University of Arizona and Jose Restrepo of UC San Diego led to new recommendations on how precast concrete floors, known as diaphragms, should be built into parking garage structures to improve their seismic behavior. Credit: University of California San Diego Principal investigator Joel Conte (right), who is also a professor of structural engineering at UC San Diego, and Koorosh Lotfizadef, the table's operations manager, inspect the platen. Professor John van de Lindt from Colorado State University, who led this project, played a key role in writing the guidelines for the retrofit of these buildings. Full-scale testing of retrofit systems for these soft-story wood-frame buildings was performed on the UC San Diego shake table in 2013.
![3d earthquake simulator 3d earthquake simulator](https://media.springernature.com/lw685/springer-static/image/art%3A10.1007%2Fs10518-016-9977-5/MediaObjects/10518_2016_9977_Fig1_HTML.gif)
![3d earthquake simulator 3d earthquake simulator](https://i.pinimg.com/originals/2e/0b/c2/2e0bc2e3a72517ca0f1c3ef2388d965d.png)
In San Francisco, approximately 6,000 "soft-story" wood-frame buildings are being retrofitted to make them safer in strong earthquakes. In the paper, researchers also detail the impact that the shake table has had on building and design codes since it opened in 2004.
![3d earthquake simulator 3d earthquake simulator](https://ds.iris.edu/seismon/swaves/help/screenshot.jpg)
#3d earthquake simulator upgrade
Conte and colleagues lay out the details of the upgrade in a paper published in January 2021 in Frontiers in Built Environment. "This facility will save a large number of human lives by making the places we live and work in safer during earthquakes," said Joel Conte, the shake table's principal investigator and a professor of structural engineering at the University of California San Diego. The first test following the upgrade will feature a full-scale, 10-story, cross-laminated timber building. The shake table will be equipped with the ability to reproduce all the six possible movements of the ground, known as six degrees of freedom. The simulator, or shake table, will be able to test the world's heaviest and tallest structures to gauge how well they would withstand various types of earthquakes.